#include <stdio.h>

#define SIZE 5
void show_array(const double ar[],int n);
void mult_array(double *ar,int n,double mult);

int main(void)
{
  double dip[SIZE]={20.0,17.66,8.2,15.3,22.22};
  printf("The original dip array:\n");
  show_array(dip,SIZE);
  mult_array(dip,SIZE,2.5);
  printf("-------------------\n");
  show_array(dip,SIZE);
  return 0;
}

void show_array(const double ar[],int n)
{
  int i;
  for(i=0;i<n;i++)
    printf("%8.3f ",ar[i]);
  putchar('\n');
}

void mult_array(double ar[],int n,double mult)
{
  int i ;
  for(i=0;i<n;i++)
    ar[i] *= mult;
}
